To access Emerald Pools, start your hike at the Grotto (Shuttle Stop #6).
This does not affect other trailheads or the Zion Canyon Shuttle System. More
Weeping Rock Shuttle Bus Stop, Parking Area, and Trail Closed
How would you like to bask in the desert sun beneath towering sandstone cliffs alongside a lush, riparian waterway? You won’t be alone. Joining you will be a myriad of reptiles; ectotherms that soak up the sun to warm up internally and get moving. While in Zion National Park, you may have the opportunity to spot one of 16 species of lizards lazing in the sun or witness the sly moves of one of 13 slithering snakes. If you are very lucky, you may even spot the slow, persistent movements of the federally protected desert tortoise.
Lizards
Zion is home to a variety of interesting lizard species, each with unique adaptations and curious behavior. Look for smaller lizards alongside Zion’s trails early in the morning. The smaller the lizard’s surface area, the quicker the body can warm up to move quickly. Larger lizards will begin to bask later in the morning once the sun’s rays are more powerful. This prevents large lizards from becoming prey before they have enough energy to safely scurry away from predators.
Plateau Lizard, tail recently detached from body
Zion National Park Photo
Plateau Lizard
(Sceloporus tristichus)
The plateau lizard is the smallest lizard of Zion,with distinctive patches of blue along its belly. This is Zion’s most common lizard, often seen along the trails in Zion Canyon. The plateau lizard has a wide range of food sources from moths and beetles to butterflies and wasps.
Greater Short-horned Lizard
Zion National Park Photo
Greater Short-horned Lizard
(Phrynosoma hernandesi)
Another lizard small in stature is the short-horned lizard. This lizard has distinctive horns, or spines, which are modified epidermal scales. These scales make the lizard very unappetizing to predators, with the exception of the roadrunner. These curious birds orient the lizard’s scales away from their vital organs during swallowing to ensure safe digestion. In addition to its scales, the Greater Short Horned Lizard uses blood as a defensive mechanism. The lizard has the ability to project blood from its tear ducts up to 3 feet from its body. Losing blood is detrimental to the lizard's health as it will need to regenerate the blood lost.
Western Whiptail basking on sand
Colorado National Monument Photo
Western Whiptail Lizard
(Cnemidophorus tigris)
A large lizard commonly seen in Zion Canyon is the western whiptail. Look for its long lean physique and rusty orange coloration on the sides of its back. Look quick though, this lengthy lizard can sprint up to 9-10 miles per hour.
Great Basin Collared Lizard
Zion National Park photo
Great Basin Collared Lizard
(Crotaphytus bicinctores)
Also large and surprisingly quick is the carnivorous Great Basin collared lizard. Known to stand up and run on its hind legs, this 14-inch lizard preys upon smaller lizards, snakes, and insects. Look for the collared lizard in the lower canyon and along the Watchman Trail.
Snakes
Unlike most lizards, many of Zion's snakes are nocturnal, so consider yourself lucky if you have a snake sighting. Many snakes have evolved to be efficient nighttime predators. When snakes are moving along the ground, their long, slender bodies, in full contact with the earth, can detect vibrations. This helps them "hear" the movements of their prey approaching. A forked tongue, when flicked, helps snakes detect odors. Some snakes have developed special organs sensitive to heat, while others have developed sharp eyesight.
Snakes are exclusive carnivores and in the desert will often rely on their prey as both a source of food and water.
Great Basin Rattlesnake
Zion National Park photo
Great Basin Rattlesnake
(Crotalus oreganuslutosus)
The great basin rattlesnake, Zion’s only venomous snake, can go for months without water. The snake is well adapted to the desert and gains most of its hydration from food it digests. Average strike speed for the great basin rattlesnake is 9.6 feet per second. Like other rattlesnakes, you can usually identify them by the triangular head and the rattle at the end of their tail. However, the rattles are not always present—they can break off, or a young snake may not have developed their rattles yet. Locally, great basin rattlesnakes are usually light brown with darker brown blotches down the middle of their back. However, their colors can vary over a range of shades, and they usually blend in well with their surroundings.
Common Kingsnake
Zion National Park photo
Common Kingsnake
(Lampropeltis getula)
Immune to rattlesnake venom, the common kingsnake is an occasional predator to the rattlesnake. This snake uses its powerful black and white banded body to tightly constrict its prey, which often includes other snakes and small mammals. Look for the kingsnake in low elevations and sandy washes.
Striped Whipsnake
Zion National Park photo
Striped Whipsnake
(Masticophis taenaitus)
The striped whipsnake is a skilled tree-climber. This snake retreats to tree limbs, high off the ground, in search of prey such as lizards and birds. In Zion, one should search high and low if you’re seeking wildlife observations.
Ground Snake
A.T. Holycross via Zion Wildlife Department
Ground Snake
(Sonora semiannulata)
The ground snake is a small, harmless colubrid snake native to North America. It is sometimes referred to as the Common ground snake or Variable ground snake, as its patterning and coloration can vary widely, even within the same geographic region. Individuals can be brown, red, or orange, with black banding, orange or brown striping, or be solid-colored. The underside is typically white or gray. These snakes have smooth dorsal scales, a small head, and the pupil of their eye is round.
Gopher snake camouflaging on the rocky ground
Great Basin Gopher Snake
(Pituophis catenifer deserticola)
Gopher snakes are the longest snake in Zion, reaching up to 92 inches (2.3m). They have a base color that is tan, cream, yellow, or orange-brown. A series of large brown, red, black, or olive blotches cover the back of the snake. Black bands on their tail mimic the rattle found on rattlesnakes. When threatened, they rapidly vibrate their tail, making attackers think it is a highly venomous rattlesnake. Gopher snakes are widspread throughout the park, and have even been seen swimming in the Virgin River! Gopher snakes are constrictors, meaning that they kill prey by wrapping their muscular body around the prey animal and squeezing to prevent blood flow. They typically prey on small mammals, earning their name from pocket gophers that make up a large portion of their diet.
Desert tortoise
Tortoises
Desert Tortoise
(Gopherus agassizii)
A rare reptile sighting in Zion is the desert tortoise. This long-lived tortoise is a resident of the Mojave Desert, which extends north into the southern-most portions of Zion. The desert tortoise population is threatened because of high predation rates, habitat loss, illegal collection, and vehicle collisions. If you see a tortoise in Zion, simply watch it from a distance and enjoy the experience.
Whether you see the desert tortoise in the low elevations or the short-horned lizard high on the plateau, Zion’s reptiles can be found at every elevation in the park during the spring, summer, and fall. All of Zion’s reptiles are known to brumate for four to five months a year. During this time, reptiles burrow down in the ground from depths of four inches to eight feet. Reptiles will come out of brumation on a warm sunny day in the middle of winter, then go back to brumation once it starts to cool off again. Once spring arrives in Zion and temperatures begin to rise, be sure to keep an eye out for Zion’s great diversity of reptiles.
Offices:Natural Resource Stewardship and Science Directorate
Barrett’s Farm, in present-day Minute Man National Historical Park, played a significant role in 1775 in the first armed conflict of the American Revolution. Although Barrett’s Farm is known largely for its history, biologists wanted to learn more about the wildlife inhabiting the site. The National Park Service and its partners set out in 2023 to find out what types of amphibians, reptiles, and birds occur at Barrett’s Farm.
Sidewinder snakes are small creatures that face big threats. They play a crucial role in the desert ecosystem of Saguaro National Park in Arizona. Scientists conducted a species inventory to find out how rare this species is in the park, and if actions are needed to protect it.
Locations:Golden Gate National Recreation Area, Point Reyes National Seashore, Presidio of San Francisco
Thanks to park biologists and partners, visitors can again spot western pond turtles in popular parts of Golden Gate National Recreation Area and the Presidio of San Francisco where they had vanished. But the turtles still need help growing their numbers. Cue an unlikely conservation hero: Canis lupus familiaris, the domestic dog! This May and June, specially trained dogs are helping biologists find and protect vulnerable turtle nests in the parks.
Locations:Cape Hatteras National Seashore, Cape Lookout National Seashore, Catoctin Mountain Park, Chesapeake & Ohio Canal National Historical Park, George Washington Memorial Parkway, Harpers Ferry National Historical Park, Hopewell Furnace National Historic Site, National Capital Parks-East, Prince William Forest Park, Rock Creek Park, Upper Delaware Scenic & Recreational River, Valley Forge National Historical Parkmore »
Parks are a great place to appreciate turtles in their natural habitat. NPS is now studying at-risk land turtles in the Mid-Atlantic to better understand how to help them survive into the future.
Locations:Carlsbad Caverns National Park, Chiricahua National Monument, Coronado National Memorial, Fort Bowie National Historic Site, Gila Cliff Dwellings National Monument, Montezuma Castle National Monument, Saguaro National Park, Tuzigoot National Monumentmore »
The American bullfrog is a great threat to aquatic ecosystems in the Southwest. They are voracious predators of aquatic animals and carry diseases that kill native species. We will implement three main actions in this project funded by the Inflation Reduction Act, Invasive Species Grant: bullfrog control, native species recovery and reintroduction, and development of early detection/rapid response protocols for bullfrogs.
Locations:Golden Gate National Recreation Area, Muir Woods National Monument
In 2017, scientists released a group of western pond turtles—California’s only native freshwater turtle—at Muir Beach Lagoon as part of a broader reintroduction effort. Since then, biologists have been carefully monitoring the cohort and their movements. But recent chance sightings took them by surprise.
Locations:Crater Lake National Park, Lassen Volcanic National Park, Lava Beds National Monument, Redwood National and State Parks
Curious about the common garter snake in southern Oregon and northern California? Explore its natural history in this edition of our quarterly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network.
Locations:Golden Gate National Recreation Area, Muir Woods National Monument, Point Reyes National Seashore
Offices:San Francisco Bay Area Inventory & Monitoring Network
This summer, the San Francisco Bay Area Network’s coho and steelhead monitoring team started a two-year project to inventory aquatic species in streams across Point Reyes National Seashore and Golden Gate National Recreation Area using environmental DNA. Environmental DNA, or eDNA, is genetic material shed by organisms in the water column. By collecting particulate samples from the water, we hope to learn if species of interest are utilizing certain streams.
Zion National Park
1 Zion Park Blvd.
Springdale,
UT
84767
Phone:
435-772-3256
If you have questions, please email zion_park_information@nps.gov.
Listen to recorded information by calling anytime 24 hours a day.
Rangers answer phone calls from 10 a.m. to 5 p.m. MT, but a ranger may not answer if they are already speaking with someone else.